Fix an iOS reference in testbed cloning.

[johnzhou721]

However, this does NOT work. Somehow when I unpack the finished support package and find the testbed, this happens:

PR Checklist:

• All new features have been tested
• All new features have been documented
• I have read the CONTRIBUTING.md file
• I will abide by the code of conduct

[freakboy3742]

Yup - that's a pretty glaring bug :-)

I guess this is an indication that we really should be running at least a "smoke test" of the distribution asset as part of the build. At present, the only test we're running is on iOS, and it uses the Python-Apple-standalone project, which would require a Briefcase backend for every platform. Running a minimal subset of the CPython test suite seems like an equally valid set of tests.

[johnzhou721]

@freakboy3742 but what about the screenshot I put in? Something's going on with this at least on my end...

[freakboy3742]

Given that the visionOS testbed was copying completely the wrong project, I assumed the screenshot was related to that. If it's not, then that's a separate bug that isn't "iOS reference in testbed cloning". My immediate guess would be that you haven't got 3.14.0a7 installed locally, but I could be wrong on that count.